From the 1 of 8.2k papers with an AI index.
- Istituto Nazionale di Fisica Nucleare, Sezione di TriesteIT2.8k papers
- The Abdus Salam International Centre for Theoretical Physics (ICTP)IT1.1k papers
- University of TriesteIT1.1k papers
- Centre National de la Recherche ScientifiqueFR983 papers
- University of PaduaIT725 papers
- National Institute for AstrophysicsIT724 papers
- Osservatorio Astronomico di PadovaIT716 papers
- Trieste Astronomical ObservatoryIT612 papers
- Institute for Fundamental Physics of the UniverseIT605 papers
- University of MilanIT492 papers
- Sapienza University of RomeIT490 papers
- California Institute of TechnologyUS460 papers
12 papers · 2 filters
Impossibility of superluminal travel in Lorentz violating theories
Antonin Coutant, Stefano Finazzi, Stefano Liberati +1
Warp drives are space-times allowing for superluminal travel. However, they are quantum mechanically unstable because they produce a Hawking-like radiation which is blue shifted at…
Quantum vacuum radiation in optical glass
Stefano Liberati, Angus Prain, Matt Visser
A recent experimental claim of the detection of analogue Hawking radiation in an optical system [PRL 105 (2010) 203901] has led to some controversy [PRL 107 (2011) 149401, 149402].…
Nonlinear Decay of r modes in Rapidly Rotating Neutron Stars
Wolfgang Kastaun
We investigate the dynamics of r modes at amplitudes in the nonlinear regime for rapidly but uniformly rotating neutron stars with a polytropic equation of state. For this, we perf…
Black holes in scalar-tensor gravity
Thomas P. Sotiriou, Valerio Faraoni
Hawking has proven that black holes which are stationary as the endpoint of gravitational collapse in Brans--Dicke theory (without a potential) are no different than in general rel…
Large N Quantum Gravity
A. Codello
We obtain the effective action of four dimensional quantum gravity, induced by N massless matter fields, by integrating the RG flow of the relative effective average action. By con…
Extended LCDM: generalized non-minimal coupling for dark matter fluids
Dario Bettoni, Stefano Liberati, Lorenzo Sindoni
In this paper we discuss a class of models that address the issue of explaining the gravitational dynamics at the galactic scale starting from a geometric point of view. Instead of…